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Merge pull request #11631 from bboreham/size-meta-alloc

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tsdb: use smaller allocation in blockBaseSeriesSet
This commit is contained in:
Ganesh Vernekar 2022-11-28 16:12:55 +05:30 committed by GitHub
commit 247201005c
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1 changed files with 8 additions and 1 deletions
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9
tsdb/querier.go
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@ -471,7 +471,14 @@ func (b *blockBaseSeriesSet) Next() bool {
var trimFront, trimBack bool var trimFront, trimBack bool
// Copy chunks as iterables are reusable. // Copy chunks as iterables are reusable.
chks := make([]chunks.Meta, 0, len(b.bufChks)) // Count those in range to size allocation (roughly - ignoring tombstones).
nChks := 0
for _, chk := range b.bufChks {
if !(chk.MaxTime < b.mint || chk.MinTime > b.maxt) {
nChks++
}
}
chks := make([]chunks.Meta, 0, nChks)
// Prefilter chunks and pick those which are not entirely deleted or totally outside of the requested range. // Prefilter chunks and pick those which are not entirely deleted or totally outside of the requested range.
for _, chk := range b.bufChks { for _, chk := range b.bufChks {